public class Demo6 {

    public static void main(String[] args) throws InterruptedException {

        Thread t = new Thread(() -> {

            while (true) {

                System.out.println("hello thread");
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
//               throw new RuntimeException(e);

//                    break;
                }
            }
//            System.out.println("t 结束");
        });

        t.start();

        int i = 0;
        while (i < 3) {

            System.out.println("hello main");
            Thread.sleep(1000);
            i++;
        }
        t.interrupt();

    }

}
